A protective glove includes at least a first finger section and a second finger section, each finger section comprising a protective layer configured to be at least partially arranged over a finger part of a user; and a pivot connecting said first finger section and said second finger section. The pivot has a pivot axis that substantially coincides with a finger joint of a user's hand. One of the first and second finger section comprises a rounded protrusion and wherein the other of the first and second finger section comprises a corresponding rounded recess configured to receive said rounded protrusion, said protrusion and recess together forming said pivot connecting said first finger section and said second finger section. The first and second finger section and said pivot define a substantially continuous and flush wall.
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1. A glove, comprising:
at least a first finger section and a second finger section, each finger section being separated from one another and comprising a protective layer configured to be at least partially arranged over a finger part of a user; and
a pivot connecting said first finger section and said second finger section;
wherein said pivot has a pivot axis that is adapted to coincide with a finger joint of a user's hand;
wherein one of the first and second finger section comprises a rounded protrusion and wherein the other of the first and second finger section comprises a corresponding rounded recess configured to receive said rounded protrusion for sliding movement between the rounded protrusion and the rounded recess, said protrusion and recess being separate pieces together forming said pivot connecting said first finger section and said second finger section;
wherein the glove is a protective glove;
wherein the arrangement of the protrusion and recess provide the pivot with a relationship in which there is no lateral overlap, defined in a direction along the pivot axis, between the first and the second finger sections at the pivot; and
wherein the first and second finger section and said pivot define a substantially continuous and flush wall.
2. The glove according to
3. The glove according to
4. The glove according to
5. The glove according to
6. The glove according to
the glove further comprising a further damping layer arranged against said outer leg of said U-shaped protective layer and configured to be arranged against a finger part of said user.
7. The glove according to
8. The glove according to
one of the first finger section and the second finger section, and a second protrusion on the other of the first finger section and the second finger section, wherein said second protrusion is configured to mate with said guide slot; and
one of the second finger section and the third finger section, and a second protrusion on the other of the second finger section and the third finger section, wherein said second protrusion is configured to mate with said guide slot.
9. The glove according to
10. The glove according to
11. The glove according to
12. The glove according to
wherein said dorsal hand section comprises a first dorsal hand part and a second dorsal hand part which overlap and have a slanting division configured to extend from substantially at or near or between a knuckle of at least one of a middle finger and a ring finger towards an end of a metacarpal bone of a little finger facing a wrist of a user; and
wherein a thumb cover part is pivotably connected to said dorsal hand section;
and wherein the dorsal hand section and the thumb cover part overlap over their range of motion.
13. The glove according to
14. The glove according to
wherein said guide slot is arranged between adjacent third finger sections; and
wherein the adjacent third finger sections are connected with a connection that extends through said guide slot between said adjacent third finger sections.
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This is a national stage application filed under 35 U.S.C. § 371 of pending international application PCT/NL2017/050155, filed Mar. 10, 2017, which claims priority to Netherlands Patent application NL2016426, filed Mar. 12, 2016 and also claims priority to Netherlands Patent application NL2017378, filed Aug. 26, 2016, the entirety of which applications are hereby incorporated by reference herein.
The present invention relates to a protective glove.
Gloves are commonly used for protecting a hand against adverse conditions, such as thermal conditions (cold or heat), chemical conditions (acids, etc.), or mechanical conditions (abrasion or impact). Different protective conditions often have conflicting demands. For example, a comfortable glove providing sensitive control and impact resistance at the same time has contradictory demands.
Motorcycle gloves designed for motorsports comprise a soft inner layer, providing a good feeling on the steer of the motorbike. The outer parts of the glove are normally provided with hard shell elements, aimed at protecting the hand against abrasion during sliding, e.g. resulting from a skidding. While motorcycle gloves offer valuable protection against abrasion, they are not designed for high impact situations.
In industry and some sports, such as Historical European Martial Arts (HEMA), demands are so high that current protective gloves are not good enough. For example, in HEMA, fighters are exposed to real impacts of a blunted steel sword. In industry, sensitive touch is often required for controlling machinery.
The article “Glove One: The 3D Printed Smartphone Glove” discloses a 3D printed smartphone that is integrated in a glove. The glove has an integrated electronic circuits and components. This glove, which forms the closest prior art, comprises pivot joints. The finger sections are shaped in such a way that a user may close his/her hand. However, when the user extends his/her fingers, the shape of the finger sections form spaces where the sides of the fingers of the user are exposed, e.g. to puncture by sharp objects. Due to the integrated electronics, the smartphone glove is vulnerable to impact, and it is therefore clearly not intended to protect against impact situations.
U.S. Pat. No. 4,272,849 discloses a protective glove for being worn by a workman, the glove including stainless steel plates positioned against the backhand side so to protect the hand against being crushed. This glove is designed to protect against pressure, not against impact.
US-A1-2008/086789 also discloses a protective glove against puncture, and is designed to be worn by a user of pneumatic devices, such as nailers, for protection against nail misfiring. Only the exposed area of the hand, in a specific orientation of said hand, is covered to stop or impede e.g. a nails's momentum. The cover parts may be integrated in a glove, or held in place on the hand by other means such as an elastic strap.
US-A1-2005/114982 discloses a protective glove having a flexible liner conforming to the shape of a hand and wrist and having a plurality of rigid guards secured thereto over the distal, middle, and proximal phalanx bones, the metacarpals, and wrist bones of the wearer. The glove may protect a user against blunt force injury. The distal, middle, and proximal guards secure to the liner spaced apart from one another, leaving the anterior side of the liner over the phalangeal joints exposed to facilitate articulation thereof.
WO-A1-2014/041320 and US-A1-2002/184695 are acknowledged as further prior art.
An object of the present invention is to provide a protective glove, that is improved relative to the prior art and wherein at least one of the above stated problems is obviated.
Said object is achieved with the protective glove according to the present invention, said protective glove comprising:
The pivot axis substantially coincides with a finger joint of a user's hand, and therefore the pivot is arranged at a lateral side of the finger joint, i.e. not at a dorsal or palm side. If the pivot is arranged between adjacent fingers, the space is limited if a forced spreading of the fingers due to bulky pivots is to be prevented. However, by the feature of the first and second finger section and said pivot defining a substantially continuous and flush wall, the amount of material between adjacent fingers is minimized. The rounded protrusion and corresponding rounded recess allow the pivot having non-overlapping relationship between the first and second finger section.
The pivot defined by the mating rounded protrusion and the corresponding rounded recess on the one hand allows for a flush outer surface that only requires a limited wall thickness.
On the other hand, it also allows for a substantially continuous and flush wall being defined by the first and second finger section and said pivot. The fingers will be protected by said wall in both an extended and a bend state of the finger.
It is to be understood that continuous should be interpreted in a protective meaning, i.e. the wall provides a substantially continuous protection along its length. The skilled person will understand that small openings, such as ventilation holes, will not negatively influence the protection characteristics of said wall.
Because the first and second finger section and said pivot define a substantially continuous and flush wall, they require a limited space around a protected finger. Especially if two adjacent fingers of a user's hand are protected by finger sections according to the invention, this limited space allows the user to maintain a normal and comfortable posture of his or her hand. Especially a necessary spreading of the fingers is prevented.
Further objectives, benefits or inventive effects, are attained according to the present disclosure by the assembly of features in the appended claims.
The invention also encompasses a computer-readable medium having computer-executable instructions adapted to cause a 3D printer to print a finger section and/or other parts of a protective glove according to the invention and/or to print a mould for such a finger section and/or for such other parts of a protective glove according to the invention.
In the following description preferred embodiments of the present invention are further elucidated with reference to the drawing, in which:
A protective glove 1 for a hand 2 is shown in
A thumb 4 only comprises a distal phalanx 14 and a proximal phalanx 18. Other fingers, such as index finger 6, middle finger 8, ring finger 10 and little finger 12, also comprise a middle phalanx 16 (
Each finger section 30, 70, 120 comprises a protective layer 32, 72, 122 configured to be at least partially arranged over a finger part of a user. The finger sections 30, 70, 120 are shown in detail in
A pivot 50 connects said first finger section 30 and said second finger section 70, wherein the first finger section 30 and the second finger section 70 and said pivot 50 define a substantially continuous and flush wall, as shown in
One of the first 30 and second finger section 70 comprises a rounded protrusion 52 and the other of the first 30 and second finger section 70 comprises a corresponding rounded recess 56 configured for receiving said rounded protrusion 52. The protrusion 52 and recess 56 together form the first pivot 50 connecting the first finger section 30 and the second finger section 70. The protrusion 52 and recess 56 provide a first pivot 50 having a non-overlapping relationship between the first 30 and the second finger section 70 at the pivot. The arrangement of the protrusion 52 and the recess 56 provide the non-overlapping relationship such that there is no lateral overlap, defined in a direction along the pivot axis, between the first and the second finger sections at the pivot. In this way, the first 30 and second finger section 70 and said first pivot 50 define a substantially continuous and flush wall, and the amount of material between adjacent fingers is minimized.
Likewise, preferably also one of second finger section 70 and third finger section 120 comprises a rounded protrusion 100 and the other of the second 70 and third finger section 120 comprises a corresponding rounded recess 104 configured for receiving said rounded protrusion 100. The protrusion 100 and recess 104 together form the second pivot 98 connecting the second finger section 70 and the third finger section 120.
In the shown embodiment, both the first pivot 50 and the second pivot 98 are arranged on a neutral line of said finger. The neutral line is a line defining the same length between a knuckle and the tip of a respective finger in the extended and bend state of said finger. If the pivot is arranged on said neutral line, the pivot axis thereof passes through said neutral line. Consequently, relative movement of the first 30 and second finger section 70, and relative movement of the second 70 and third finger section 120 with respect to each other is substantially free of stretch and compression. The result is a comfortable glove that can be moved through its range of motion with minimal muscular effort. Of course, such an arrangement may also be applied for only one of the first 50 and second pivot 98. Conventional gloves have the disadvantage that the outer layer is stretched when the hands are closed, i.e. when a first is made or something is gripped. This stretching may cause fatigue when a user repeatedly has to stretch his/her hands and grip objects. For this reason, gloves are often designed for optimal comfort during one specific use: a motorcycle glove is generally designed to provide a comfortable fit when the user holds the grip of the steer. Such motorcycle gloves are less comfortable with stretched hands.
As shown in
The protective layer 32, 72, 122 has a U-shape having a base 34, 74, 124 and two legs 36, 76, 126, wherein the wall thickness of the base 34, 74, 124 is at least two times larger, preferably at least three times larger, and more preferably at least four times larger than the wall thickness of at least one of the legs 36, 76, 126 of said U-shaped protective layer 32, 72, 122. The legs follow the shape of the sides of the fingers, and due to the combination of small thickness and material properties can gently clamp the finger without causing the sensation of pressure, even while moving from the first to the second state and thus increasing the width of the finger.
The legs 36, 76, 126 of the finger sections 30, 70, 120 and legs 164, 174 of a first dorsal hand part 160 and a second dorsal hand part 170, significantly increase the moment of inertia of the profile of the finger sections 30, 70, 120 and dorsal hand parts 160, 170, and thus the stiffness thereof. The legs 36, 76, 126 also prevent the protective layer 32, 72, 122 to be pressed aside as a result of impact, which would leave the finger 4, 6, 8, 10, 12 exposed.
The legs 36, 76, 126 preferably extend a distance from the base 34, 74, 124 that is large enough to prevent a finger 4, 6, 8, 10, 12 from being crushed by a heavy load, i.e. the space enclosed by the legs 36, 76, 126, the base 34, 74, 124 and the damping layer 40, 80, 130 preferably enough to allow circulation of blood even when the hand 2 is stuck between two objects.
A damping layer 40, 80, 130 is arranged against said base 34, 74, 124 of said U-shaped protective layer 32, 72, 122 and configured to be arranged against a finger part of said user.
A finger section 30, 70, 120 of an outer finger, such as a little finger 12 and/or an index finger 6 and/or a thumb 4, comprises an outer leg 38, 78, 128 of the U-shaped protective layer 32, 72, 122 on an outer side facing away from said protective glove 1, wherein this outer leg 38, 78, 128 preferably has a larger wall thickness than an inner leg 36, 76, 126 of said U-shaped protective layer 32, 72, 122 of said outer finger 4, 6, 12. The outer legs 38, 78, 128 protect the most exposed finger parts against impact and abrasion.
Preferably, a further damping layer 130 is arranged against the outer leg 38, 78, 128 of the U-shaped protective layer 32, 72, 122 and configured to be arranged against a finger part of said user (
Although the thumb as shown in
As shown in
Preferably, the damping layer 40, 80, 130 comprises a foam material, more preferably a Poron-XRD foam.
In order to prevent entrance of pointed objects throughout the full range of motion of a user's hand, the first 30 and second finger section 70 overlap throughout a range of motion of the first pivot 50 connecting the first finger section 30 and the second finger section 70. Likewise, preferably also the second 70 and third finger section 120 overlap throughout a range of motion of the second pivot 98 connecting the second finger section 70 and the third finger section 120 (
The overlap 62, 110 preferably comprises a curvature around said pivot point 50, 98, wherein a sliding contact is maintained between the overlapping finger sections 30, 70 and 70, 120 throughout the range of motion of the respective pivot 50, 98. Due to this curved overlap 62, 110, an impact force on e.g. the second finger section 70 may be transferred to the first finger section 30 via first pivot 50, and transferred to the third finger section 120 via second pivot 98. In this way, also the damping layer 40, 80, 130 of a neighboring finger section 30, 70, 120 may be compressed for absorbing an impact force.
Extra stiffness, even with a limited wall thickness is obtained if at least an outer overlapping part 62 of said first 30 and second finger section 70 comprises a double curved surface. Likewise, preferably also an outer overlapping part 110 of said second 70 and third finger section 120 comprises a double curved surface.
The first finger section 30 is a distal finger section configured for protecting a distal phalanx 14 of a finger of said user. The first finger section preferably comprises a distal protection 42 configured for extending past and over a distal end of the user's finger (
The protective glove 1 further comprises a dorsal hand section 150 with a further protective layer 152 configured to be at least partially arranged over a part of a dorsal hand 22, i.e. back of the hand, of the user (
The dorsal hand section 150 is connected to a sleeve 182 configured to be arranged over a lower arm 28 of a user.
The dorsal hand section 150 comprises double curved areas 156 at or near a knuckle 24 of the user's hand 2. The double curved areas 156 overlap the second finger section 70 of a thumb 4 or a third finger section 120 of a finger 6, 8, 10, 12, and functions as a ball joint. The double curved areas 156 provide stiffness even at a reduced wall thickness, and further provide a range of motion that allows pan, roll and tilt of the finger section 70, 120 relative to the dorsal hand section 150. This movement is indicated for the proximal phalanx 18 of a middle finger 8 with the arrows in
As shown in
Both the first dorsal hand part 160 and the second dorsal hand part 170 of the dorsal hand section 150 comprise a protective layer 152 and a damping layer 154. As can be seen in
The protective layer 152 of the first dorsal hand part 160 comprises a base 162 and a leg 164. The leg 164 extends along the thumb side of the hand 2, and preferably extends a distance from the base 162 that is large enough to reduce the chance that metacarpal bones of a user's hand 2 are being crushed by a heavy load.
Likewise, the protective layer 152 of the second dorsal hand part 170 comprises a base 172 and a leg 174. The leg 174 extends along little finger side of the hand 2, and preferably extends a distance from the base 172 that is large enough to reduce the chance that metacarpal bones of a user's hand 2 are being crushed by a heavy load.
The space enclosed by the legs 164, 174, the bases 162, 172 and the damping layers 154 is preferably enough to allow circulation of blood even when the hand 2 is stuck between two objects.
The protective glove 1 preferably further comprises at least one protective flap 180 extending from said dorsal hand section 150 over at least a part of two adjacent third finger sections 120, preventing pointed objects penetrating between adjacent fingers into the hand 2. The protective flap 180 transfers any impact force to the third finger sections 120 it rests on, and in this way a force may be absorbed by the protective later 122 and damping layer 130 of the respective third finger sections 120.
The protective layer 32, 72, 122, 152 preferably has a Young's modulus in the range of 0.1-2 GPa, which provides connection to the hand, for example clamping the finger, without causing the sensation of pressure, even while moving from the first to the second state and thus increasing the width of the finger.
As described before, such a curved overlap 62, 110 prevents entrance of pointed objects throughout the full range of motion of a user's hand. The curved overlap 62, 110 also assists in transferring an impact force on e.g. the second finger section 70 to the first finger section 30 via first pivot 50, and transferring such impact force to the third finger section 120 via second pivot 98. In this way, also the damping layer 40, 80, 130 of a neighboring finger section 30, 70, 120 may be compressed for absorbing an impact force.
In
In
Guide slot 112 comprises an abutment 114 configured to function as a stop for said protrusion 116. This stopping function of the abutment 114 limits the range of motion of said pivot 98. In this way, the curved overlap 110 can be maintained even under severe impact conditions, thereby safeguarding that even in extreme situations no gap will occur, and entrance of pointed objects will be prevented. Abutment 114 can be seen in
For the first embodiment, the connection between the third finger sections 120 and the dorsal hand section 150 has been described using
In the first embodiment, dorsal hand section 150 comprised two overlapping parts, i.e. a first dorsal hand part 160 and a second dorsal hand part 170, having a slanting division 166 extending from substantially at or near or between knuckles 24 of a middle finger 8 and/or of a ring finger 10 towards an end of a metacarpal bone of a little finger facing a wrist of a user (
According to an alternative and even more preferred embodiment, a thumb cover part 176 is pivotally connected to said dorsal hand section 150 (
In order to prevent that a gap might occur through which (pointed) objects may impact the user's hand, the dorsal hand section 150 and the thumb cover part 176 overlap over their range of motion. This range of motion is the range of motion during use, i.e. when worn by a user, thus when fitted over a user's hand. This range of motion will then be limited by the biomechanics of the user's hand and not by the protective glove 1.
As shown in
Preferably, the dorsal hand section 150 is slightly curved, providing a distance between the dorsal hand section and the non-contact area 27 (
The cross sectional side views of
Preferably, the further damping layer 131 comprises a synthetic rubber, e.g. a silicone rubber or polyurethane (PU), instead of the foam for the damping layer 40, 80, 130.
Preferably, the further damping layer 131 comprises a Shore A hardness below 8. More preferably comprises a Shore 00 hardness below 55, and even more at or below a Shore 00 hardness value of 50.
In the embodiment of
Furthermore, the first finger section 30 is provided with an opening 44. As can be best seen in
The embodiment shown in
In order to provide flexibility, the wrist protector 194 comprises at least a first wrist protector part 196 and a second wrist protector part 198. In the shown embodiment, the first and second wrist protector parts 196, 198 are each provided with a respective slot 202, 204, in which a strap 200 is arranged. A further strap 206 connects the wrist protector 194 and the dorsal hand section 150.
In the embodiment of
Although they show preferred embodiments of the invention, the above described embodiments are intended only to illustrate the invention and not to limit in any way the scope of the invention. Accordingly, it should be understood that where features mentioned in the appended claims are followed by reference signs, such signs are included solely for the purpose of enhancing the intelligibility of the claims and are in no way limiting on the scope of the claims.
Furthermore, it is particularly noted that the skilled person can combine technical measures of the different embodiments. One or more than one of the alternatives shown in
For example, although the dorsal hand section is shown as a single part in
The scope of the invention is therefore defined solely by the following claims.
Kamphuis, Maarten Alexander, Kuipers, Youval You-wei
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
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Nov 19 2018 | KAMPHUIS, MAARTEN ALEXANDER | CROSSGUARD IP B V | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 047936 | /0615 | |
Nov 19 2018 | KUIPERS, YOUVAL YOU-WEI | CROSSGUARD IP B V | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 047936 | /0615 | |
Dec 05 2023 | CROSSGUARD IP B V | LIWELL B V | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 065853 | /0368 |
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